Striking face of an iron type golf club head



FIG. 1 is a front elevational view of a striking face of an iron type golf club head showing my new design;

FIG. 2 is a front perspective view thereof; and,

FIG. 3 is a top view thereof.

The broken lines showing a golf club head are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a striking face of an iron type golf club head, as shown and described. 